Lantern



FIG. 1 is a right, front, top perspective view of a lantern according to our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof.

The broken line showing represents portions of the article not claimed and forms no part of the claimed design. 

CLAIM The ornamental design for a lantern, as shown and described. 